AM I PREGNANT?? PLEASE HELP. i took part in sexual activity on thr 27th of december (no penetration), and my period was due on 5th of January but it came on 19th of january which is normal for me as mine are very irregular. then, surprisingly my period came one day early on the 18th of february. but yesterday (2nd march), i took part in sexual activity, only rubbing was involved, no ejaculation or penetration and my vagina was not very wet but i was very worried so i took an ipill today (3rd march) within 18 hours of the act. what is my chance of pregnancy?? please help. i am worried about the precum causing pregnancy.